Garbage-incinerator.



R. W. KRENZ.

GARBAGE INCINERATOR. APPLICATION FILED MAR. 31. 1915.

L15A9 Patented oet. 5, 1915.

3 SHEETS-SHEET I.

R. W. KRENZ. GARBAGE INCINERATOR.

APPLICATION FILE-D MAR. 3l. 1915- Patented Oct. 5, 1915.

3 SHEETS-SHEET 2.

t WlTNESSES @wf M R. W. KRENZ.

GARBAGE INCINERATOR.

APPLICATION FILED MAR. al. |915.

Patented Oct. 5, 1915u 3 SHEETS-SHEET 3.

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WITESSES RINHOLD w. Kanus, or TOLEDO, omo.

GARBAGE-INCINERATOR.

.l Specification of Letters Patent.

Patented (1ct. 5, 1915.

Appucauon med march a1, 191.5. serial No. 18,375.

To all whom z't may concern:

Be it known that I, RINHOLD W. KRENz, a citizen of the United States,and a resident of Toledo, in the county of Lucas and State of Ohio, haveinvented a certain new and useful Garbage-Incinerator; and I doherebydeclare Vthe following to be a full, clear, and exact descriptionof the invention, such as will enable others' skilled in the art towhich it appertains to make and use the same, reference being had to theaccompanying drawings, and to the characters of reference markedthereon, which form a part of this specification.

My invention relates particularly to a garbage incinerator and has forits object the provision of an improved appara-tus of this characterwhich is simple and inexpensive in'its construction, economical tooperate and highly eicient in its operation, whereby .to enhance thepracticability and commercial value thereof.

Further objects and advantages of the invention will be apparent fromthe following detailed description thereof.

4The invention is fully described in the following specification, andwhile, in itsis preferably, but not necessarily, of circular form'andhas its body wall or shell composed of inner: and outer walls 1 and`2with a suitable heat insulating material 3, such, for instance, asasbestos, disposed therebetween. A bottom member 4`closes the bottom orlower end of the apparatus and has its top surface preferably ofconcaved form forthe purpose hereinafter described.

The top portion of the apparatus is provided with inner and outer walls5 and 6, respectively, which have an insulating material 7 packedtherebetween. The inner wa1l5 extends inward from the upper end of thebody wall and forms an entrance pasof the apparatus, said entrancepassage being tapered to gradually restrict it toward its upper end. Aplpe or delivery chute 9 rises from the upper end of the passage 8 andis used when 'the apparatus is placed in the basement and it is desiredto throw. garbage therein from one or more floors above. In such casethe delivery pipe 9 is provided in the rooms above, from which garbageor other matter is to be thrown therein, with doors 10.

' The pipe 9 is provided at its Alower end, in the present instance,within the passage 8 with a trap-door 11 which is pivoted to the upperportion of the apparatus top at one side ofthe pipe, as at 12, and isprovided without said pivot with a weighted arm 13 which normally actsto retain the door 11 in pipe closing position, as shown in Fig. 1. Whengarbage has been delivered into the pipe 9 and falls onto the door 11,the weight thereof will cause a downward swinging of the door so as todump the garbage into the re chamber of the apparatus after which thedoor automatically closes to prevent fumes from passing upward throughthe pipe 9 and into the rooms with which it communicates. An eXit pipe14 for the fumes and gases leads through the top portion of theapparatus from the passage 8 therein and extends to any sui-table pointof discharge. It is preferableto provide a communicating pipe, such asshown at 15, between the delivery pipe 9 and fume exit pipe 14 to permitany fumes which might enter or be .present in the pipe 9 to p'asstherefrom into the pipe 14. A gas burner 16 is provided in the lowerportion of the fume exit pipe 14 to burn all gases of a combustiblenature which may escape from the interior of the apparatus through thepipe 14.

In the lower portion of the apparatus, in vertically spaced relation tothe bottom 4, is a grate 17, which 'rests at its outer edges uponbracket members 18, and preferably has its central portion provided withan overturning or tiltable grate member 17 to facilitate a dumping ofashes or other matter'accumulating on the grate.. Below the grate 17 isdisposed a barred Hoor-ing 19 for supporting the ashpan 20. The ash pan20 is removable from the apparatus through doors 21 in the front thereofand has its bottom perforated to permit liquid matter therein to draintherefrom onto the concaved bottom 4. A drainage pipe 22 leads from thebottom 4 to take care of such drainage. A water pipe 23 is disposedwithin poses.

the lower drainage portion of the apparatus, being hung, in the presentinstance, on the bottom of the ash pan supporting floor 19 and isprovided with perforations for Y directing a multiplicity of streams ofwater against the bottom 4 for iushing pur- Water is supplied to theflushing pipe 23 through, a valved pipe 24.

In order that the garbage deposited in the lire chamber ofthe apparatusmay be held in spaced relation to the body drum of the apparatus andthereby permit the free circulation of air around the garbage, I providegrate bars 25, which rise from the outer edge portion of the grate 17,extend to the top portion of the lire chamber and form a grate entirelyaround the central portion of the fire chamber, as indicated, thusproviding the free space26 between the. body wall of the apparatusV andthe grate bars 25. The grate bars 25 in reality form a lire pot withinthe apparatus which lire pot is provided with a multiplicity ofvertically extending slots 27 to open communication between the interiorthereof and the space 26.

A gas manifold 28 extends around the lower portion of the apparatus andhas pipes 29 extending at intervals therefrom through the side of thebody wall and into the interior of the ire box forming burners therein.The pipe 30, which feeds the burner 16, is also shown as leading fromthe manifold 28. Another pipe 31 extends from the manifold 28 throughthe body wall of the apparatus and terminates at the center of the firebox in a burner 32. This burner and a portion of its pipe are inclosedby a tube 33, which tube stands upright within the fire box and has itslower end inclosing the burner 32 and angling with the pipe 31 toadjacent the body wall of the apparatus, opening at its lower end intothe space 26, whereby it may receive air therefrom. The upright portionof the tube 33 extends to or near the top portion of the ire box and istapered or radually enlarges from its lower end upward, as shown. Aconical cap 34 is provided on the top of thetube 33 to direct garbagefalling thereon to one side or another of the tube. The hot gases withinthe tube 33 have their exit therefrom into the upper portion of the firebox through openings 35 in the upper portion of the tube.

The purpose of tapering the tube 33 `is to prevent the garbage frompacking closely around the tube as it settles within the fire box.

It is preferable to provide the upper portion ofthe body wall of theapparatus with a door 36 through which matter may be thrown into thelire box. The apparatus shown in Fig. 3 is the same in construction asthat just described except that it is not adapted to have garbage orother matter deposlted therein from a ioor above. In this form 37designates a hopper which is mounted on the conical top portion of theappara# tus and has communication with the fire chamber thereof. Theouter end of the hopper 37 is provided with a door 38 while `the innerend thereof is provided with atrap door 39 that is pivoted toautomatically open when garbage s-4 deposited thereon. weighted arm 40projects from the pivoted end of the trap door 38 and serves to normallyhold the door'in closed position. A fume exit pipe/41 leads from thehopper 37 into the main fume exit pipe 42 of the apparatus.

In the use of my improved garbage incinerator the garbage or matter tobe burned is delivered into the fire box. thereof either through thedelivery pipe 9, the door 36, or the hopper 37, as thecase may be, andif delivered into the fire box in considerable quantity, it gathersaround the' center tube 33 in contact therewith. The flames from thepipes or burners 29 traverse up through the garbage and effect-a burningof all combustible matter therein while the iame from the burner 32within the tube 33 highly heats the tube 33 and serves to dry thecentral portion of the mass of garbage within the lire box. The heatingof the central portion of the garbage in this manner very materiallyfacilitates a burnin thereof as a more rapid drying of wet gar age isthereby effected.

than would be possible if no center heating column were provided. Thegrated side wall 25 of the box is also important, for if the mass ofgarbage within the fire box is firmly packed therein so that the fumesfrom the burners 29 cannot Work up through the garbage, such fumes canwork out through the slots 27 in the fire box wall and thence traverseupward through the spa-ce 26 and again enter. the fire box at the upperportion thereof. Any ash resulting from vthe burning 'of the garbage isdeposited in the` ash pan 20, and any liquid matter which may drain intothe ash pan is per- Y mitted to drain from the pan through itsperforated bottom and into the lower drainage portion of the apparatusfrom whence it passes to the sewer through the drainage pipe 22. Whendesired water maybe turned into the flushing pipe 23 for the purpose ofiooding and cleaning out the lower drainage portion of the apparatus.

I wish it understood that my invention is not limited to any specificconstruction, arrangement or form of the parts except in so far as suchlimitations are specified in the claims.

Having thus'described my invention, what I claim as new, and desire tosecure by Letters Patent, is,-

1. In an apparatus of the class described, a lire chamber, a tubeextending up within said chamber and gradually enlarging from the bottomto the top thereof, said tube having communication at its upper end withthe upper portion of said chamber, and heating means interiorly of the.tube.

2. In an apparatus of the class described, a fire chamber having agrated bottom, a tubeextending from one side of said chamber to thecenter thereof adjacent to the grate and thence extending upward through'the central portion of the chamber to the upper part thereof, andhaving its upper end opening into said chamber, and heating meansdisposed Within said tube.

3. In an apparatus of the class described,

an'outer casing, avfir'e box disposed within said casing and having abottom grate and a side grating rising from the bottom grate in spacedrelation to said casing, a tube extending from a point between saidcasing and side grating through -said grating to near the center of there box and thence extending upward through the central portion ofthefire box and having its upper end in lateral communication with theupper end of the fire box chamber, and a burner disposed in said tubefor heating the wall thereof and for directing a spreading flame outwardfrom the top of said tube over `the top of matter disposed in the lirebox.

4. In an apparatus of the class described, a fire box, a tube extendingfrom lwithout said fire box transversely thereof to near its center andadjacent to its lower end, thence extending upward through the centralportion of the fire box chamber and having lateral communication at itsupper end with the upper portion of the firel box chamber,

and a burner disposed in the lower portionof said tube.

5. In an apparatus of the class described,

a lire box, a tube extendlng from without the fire box transverselythereof to near the center thereof and thence extending upwardthroughthe centralportion of the `lire box chamber and havingcommunication with the upper end of said chamber, said tube having theupwardly extending portion .above the bottom thereof, another burnerprojected into the lower portion of the re box through the side Walls ofsaid casing and re box, and a tube inclosing said burner and extendingupward through the central portion of ,the fire box and having lateralcommunication at its upper end with the upper end portion of the firebox chamber.

7 In an apparatus of the class described, a casing having a drainageoutlet at its bottom, a fire box disposed within the casing and having agrated bottom, a pan supporting grate disposed between the bottoms ofsaid casing and fire box, a pipe disposed below said grate and extendingaround the marginal portion thereof, said" pipe having communicationwith a source of water supply and having perforations for directing aplurality of streams of water into the lower portion of said casing.

In testimony whereof, I have hereunto signed my name to thisspecification.

RINHOLD W. KRENZ.

